摘要
该研究对新疆喀什噶尔河流域平原区地下水水化学特征及灌溉适宜性进行分析和评价,以期对开采利用研究区地下水提供科学依据。作者建立了基于熵权的模糊物元模型,对研究区地下水的灌溉适应性进行综合评价。研究表明,研究区地下水水化学类型发生了明显变化,SO_(4)·Cl型水和SO_(4)·HCO_(3)型水分布面明显增加,地下水盐化和硬化明显。42.7%的潜水、24.7%的浅层承压水和26.2%的深层承压水属于Ⅰ级水,适宜用作灌溉水源。46.6%的潜水、44.1%的浅层承压水和45.9%的深层承压水属于Ⅱ级水,易造成土壤盐渍灾害,不宜长期用于农业灌溉。地下水开采、灌溉方式及矿物溶解作用对研究区地下水水质影响较大。
This paper analyzed and evaluated the hydrochemical characteristics of groundwater and irrigation suitability of groundwater in the plain of Kashgar River Basin,Xinjiang,in order to provide a scientific basis for the exploitation and utilization of groundwater in the study area.Fuzzy matter-element model based on entropy weight was established to com⁃prehensively evaluate the irrigation suitability of groundwater.The research showd that hydrochemical types of groundwater in the study area have changed significantly.The distribution of SO_(4)·Cl type groundwater and SO_(4)·HCO_(3) type groundwater had increased significantly.Groundwater salinization and hardening were obvious.42.7%of unconfined groundwater,24.7%of shallow confined groundwater and 26.2%of deep confined groundwater belonged to GradeⅠ,which was suitable for irrigation water.46.6%of unconfined groundwater,44.1%of shallow confined groundwater and 45.9%of deep confined groundwater belonged to GradeⅡ,which was easy to cause soil salinity disasters and was not suitable for long-term agri⁃cultural irrigation.Groundwater exploitation,irrigation methods and mineral dissolution had great influence on groundwater quality in the study area.
作者
王红太
周金龙
曾妍妍
魏兴
WANG Hongtai;ZHOU Jinlong;ZENG Yanyan;WEI Xing(College of Hydraulic and Civil Engineering,Xinjiang Agricultural University,Urumqi 830052,China;Xinjiang Hydrology and Water Resources Engineering Research Center,Urumqi 830052,China)
出处
《环境科学与技术》
CAS
CSCD
北大核心
2021年第3期226-236,共11页
Environmental Science & Technology
基金
国家自然科学基金项目(41662016)
新疆自治区自然科学基金项目(2019D01B18)。
关键词
地下水
模糊物元
水化学特征
熵权理论
喀什噶尔河流域
groundwater
fuzzy matter element
hydrochemical characteristics
entropy weight
Kashgar River Basin
